SN74ALS574B Datasheet | Texas Instruments

description SN54ALS574B, SN54AS574 . . . FK PACKAGE (TOP VIEW) 2D 1D OE VCC 1Q These octal D-type edge-triggered flip-flops feature 3-state outputs designed specifically for bus driving. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. The eight flip-flops enter data on the low-to-high transition of the clock (CLK) input. The SN74ALS575A, SN54AS575, and SN74AS575 may be synchronously cleared by taking the clear (CLR) input low. The output-enable (OE) input does not affect internal operations of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state. The SN54ALS574B, SN54AS574, and SN54AS575 are characterized for operation over the full military temperature range of - 55°C to 125°C. The SN74ALS574B, SN74ALS575A, SN74AS574, and SN74AS575 are characterized for operation from 0°C to 70°C. 3 2 1 20 19 3D 4 18 2Q 4D 5 17 3Q 5D 6 16 4Q 6D 7 15 5Q 7D 8 14 6Q 9 10 11 12 13 8D GND CLK 8Q 7Q SN54AS575 . . . JT OR W PACKAGE SN74ALS575A, SN74AS575 . . . DW OR NT PACKAGE (TOP VIEW) CLR 1 OE 2 1D 3 2D 4 3D 5 4D 6 5D 7 6D 8 7D 9 8D 10 NC 11 GND 12 24 VCC 23 NC 22 1Q 21 2Q 20 3Q 19 4Q 18 5Q 17 6Q 16 7Q 15 8Q 14 CLK 13 NC SN54AS575 . . . FK PACKAGE (TOP VIEW) 1D OE CLR NC VCC NC 1Q 4 3 2 1 28 27 26 2D 5 25 2Q 3D 6 24 3Q 4D 7 23 4Q NC 8 22 NC 5D...